Communication Device and Communication Method

1. A communication device, comprising: a first queue for each of a plurality of bands, wherein the first queue is configured to store first data for transmission in each band of the plurality of bands; a second queue, common to at least two bands of the plurality of bands, wherein the second queue is configured to: store second data that includes retransmission data, and store the retransmission data together with information associated with a first band of a first transmission of the first data; and a control unit configured to: control the transmission of the first data in the each band of the plurality of bands, control transmission of the second data with a second priority, wherein the second priority of the second data is higher than a first priority of the first data, and control transmission of information associated with both the first queue and the second queue.

2. The communication device according to claim 1, wherein each of the first queue and the second queue includes a plurality of sub-queues for a plurality of specific data types.

3. The communication device according to claim 2, wherein a specific priority is assigned to each data type of the plurality of specific data types, the second queue includes a set of sub-queues of the plurality of sub-queues, wherein the set of sub-queues corresponds to a first set of data types of the plurality of specific data types, the specific priority of each set of the first set of data types is higher than the specific priority of each set of a second set of data types included in the first queue, and the plurality of specific data types includes the second set of data types.

4. The communication device according to claim 1, wherein the second data, for transmission with the second priority, requires low delay and high reliability with respect to the first data.

5. The communication device according to claim 1, wherein the control unit is further configured to: output the retransmission data from the second queue; add the information, associated with the first band of the first transmission, to the outputted retransmission data from the second queue; and transmit the retransmission data to which the information associated with the first band is added.

6. The communication device according to claim 1, wherein the control unit is further configured to: output the retransmission data from the second queue, and transmit the retransmission data, output from the second queue, based on the first band of the first transmission.

7. The communication device according to claim 6, wherein the control unit is further configured to simultaneously transmit the retransmission data, output from the second queue, in the plurality of bands.

8. The communication device according to claim 1, wherein the control unit is further configured to: output the retransmission data from the second queue; add information, associated with an amount of the second data, to the outputted retransmission data from the second queue; and transmit the retransmission data to which the information associated with the amount of the second data is added.

9. The communication device according to claim 1, wherein at least one band of the plurality of bands is permitted for use by database access.

10. A communication method, comprising: storing first data, for transmission in each of a plurality of bands, in a first queue for each band of the plurality of bands; transmitting the stored first data in the each band of the plurality of bands; storing second data that includes retransmission data, and the second queue is common to at least two bands of the plurality of bands; storing the retransmission data together with information associated with a first band of a first transmission of the first data; transmitting the second data with a second priority, wherein the second priority of the second data is higher than a first priority of the first data; and transmitting information associated with both the first queue and the second queue.

11. A communication device, comprising: an information reception unit configured to receive information associated with: a first queue for each of a plurality of bands, and a second queue which is common to at least two bands of the plurality of bands; and a data reception unit configured to receive, in at least one band of the plurality of bands, the data added with information which indicates an order of second data included in the second queue, and information which indicates a band of the plurality of bands for first transmission of first data included in the first queue.

12. The communication device according to claim 11, wherein the information reception unit is further configured to receive, as the information associated with the first queue for each band and the second queue, at least one of information associated with at least one of: one of a presence or an absence of the second queue, a data type corresponding to one of the second queue or each sub-queue included in the second queue, or an amount of the second data held by the second queue.

13. The communication device according to claim 11, further comprising a data processing unit configured to rearrange each piece of the received data based on the information which indicates the order of the second data, and the information which indicates the band for the first transmission of the first data.

14. The communication device according to claim 11, further comprising a transmission unit configured to transmit a reception result of the data received in at least one band of the plurality of bands together with the information associated with the band for the first transmission of the first data.

15. The communication device according to claim 11, wherein the data reception unit is further configured to receive the data added with information associated with an amount of the second data stored in the second queue.

16. The communication device according to claim 11, wherein the at least one band of the plurality of bands is permitted for use by database access.

17. A communication method, comprising: receiving information associated with: a first queue for each of a plurality of bands, and a second queue which is common to at least two bands of the plurality of bands; and receiving, in at least one band of the plurality of bands, data added with information which indicates an order of second data included in the second queue, and information which indicates a band of the plurality of bands for first transmission of first data included in the first queue.

18. A communication device, comprising: a first queue, for each of a plurality of bands, configured to store first data; a second queue, common to at least two bands of the plurality of bands, wherein the second queue is configured to store second data that includes retransmission data, and a second priority of the second data is higher than a first priority of the first data; and a control unit configured to: control a transmission of the first data in each band of the plurality of bands, control a transmission of the second data based on the second priority of the second data; output the retransmission data from the second queue; add information, associated with an amount of the second data, to the outputted retransmission data; and transmit the retransmission data to which the information, associated with the amount of the second data, is added.